Homework Help is Here – Start Your Trial Now!
Math
Statistics
SHON IN ASK YOUR TEACHER PRACTICE ANOTHER In a study on the effect of an oral rinse on blaque bulidup on teeth, steen people whose teeth were thoroughly cleened and polshed were randomly assigned to two groups of eght sutjects each Both groups were assigned to use oral rinses (no brushing) for a 2-week period. Group 1 used a rinse that contained an antiplaque agent. Group 2, the control group, received a similar rede except that the rinse contained no antiplaque agent. A measure of plague buldup was recorded at 14 days with means and standard deviations for the two groups shown in the table Contrel Group Antiplaque Group Sample Sire Hean 1.27 0.72 Standard Deviation 0.39 0.35 A USE SALT (a) State the null and alternative hypetheses that should be used to test the effectiveness of the antiplaque oral rinse. O Ma: (-)-o versus , (, -,) 0 O Hg Cmy- ) O versus H, , - ) -0 OMoi - ) 0 Hgi C-)-o versus -) > 0 O Mo: C -) - o versus , (-) < o (1) De the data provide sufficient evidence to indicate that the ori antplaue nnse is effective Test using e0.os State the test statistic. (Round your answer to three decimal piaces.) State the rejection region. (If the test is one-taled, enter NONE for the unused region. Round your enewers to three decimal places.) State the concusion OHs not rejected. There is insufficient evidence to conclude that the aral antiplaque ise is effective OH, is not rejected. There is ssuffioent evidence to conclude that the oral antplaque rise is effective

SHON IN ASK YOUR TEACHER PRACTICE ANOTHER In a study on the effect of an oral rinse on blaque bulidup on teeth, steen people whose teeth were thoroughly cleened and polshed were randomly assigned to two groups of eght sutjects each Both groups were assigned to use oral rinses (no brushing) for a 2-week period. Group 1 used a rinse that contained an antiplaque agent. Group 2, the control group, received a similar rede except that the rinse contained no antiplaque agent. A measure of plague buldup was recorded at 14 days with means and standard deviations for the two groups shown in the table Contrel Group Antiplaque Group Sample Sire Hean 1.27 0.72 Standard Deviation 0.39 0.35 A USE SALT (a) State the null and alternative hypetheses that should be used to test the effectiveness of the antiplaque oral rinse. O Ma: (-)-o versus , (, -,) 0 O Hg Cmy- ) O versus H, , - ) -0 OMoi - ) 0 Hgi C-)-o versus -) > 0 O Mo: C -) - o versus , (-) < o (1) De the data provide sufficient evidence to indicate that the ori antplaue nnse is effective Test using e0.os State the test statistic. (Round your answer to three decimal piaces.) State the rejection region. (If the test is one-taled, enter NONE for the unused region. Round your enewers to three decimal places.) State the concusion OHs not rejected. There is insufficient evidence to conclude that the aral antiplaque ise is effective OH, is not rejected. There is ssuffioent evidence to conclude that the oral antplaque rise is effective

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
See similar textbooks
icon
Related questions
Question
NOTES ASR YOUR TEACHER PRACTICE ANOTHER In a study on the effect of an oral ninse on blaque bulidup on teeth, stxteen people whose teeth were thoroughly cleened and polished were randomly assigned to two groups of eght subjects each Both groups wwere assigned to use oral rinses (no brushing) for a 2-week period. Group 1 used a rinse that contained an antipleque agent. Group 2, the control group, received a similar rirae ecept thet the rinse contained no antiplaque agent. A measure of plaque buildup was recorded at 14 days with means and standard deviations for the two groups thown in the table. Control Group Antiplaque Group Sample Sire Mean 1.27 0.72 Standard Deviation 0.39 0.39 A USE SALT (a) State the null and alternative hypotheses that should be used ta test the effectiveness of the antiplague oral rinse H (-) -O versus (,-)0 O Ho -H) 0 versus H -)-0 O Hoi Gr -) <o versus H ( -) >0 Ho ( -)-o versus H -) >0 OHa: C, -) -o versus (,-) <0 (b) De the data provide sufmicient evidence to indicate that the oral antplaque rinse is effective Test using 0.0s State the test statistic. (Round your answer to three decimal places.) State the rejection region. (If the test is one-talled, enter NONE for the unused region, Round your entwers to three decimal glaces.) State the concusion. OHis not rejected. There is insufficient evidence to conclude that the oral antiplaque rise effective OH is not rejected. There is sufficent evidence to conclude that the oral andiplaque rise is effective
Transcribed Image Text:NOTES ASR YOUR TEACHER PRACTICE ANOTHER In a study on the effect of an oral ninse on blaque bulidup on teeth, stxteen people whose teeth were thoroughly cleened and polished were randomly assigned to two groups of eght subjects each Both groups wwere assigned to use oral rinses (no brushing) for a 2-week period. Group 1 used a rinse that contained an antipleque agent. Group 2, the control group, received a similar rirae ecept thet the rinse contained no antiplaque agent. A measure of plaque buildup was recorded at 14 days with means and standard deviations for the two groups thown in the table. Control Group Antiplaque Group Sample Sire Mean 1.27 0.72 Standard Deviation 0.39 0.39 A USE SALT (a) State the null and alternative hypotheses that should be used ta test the effectiveness of the antiplague oral rinse H (-) -O versus (,-)0 O Ho -H) 0 versus H -)-0 O Hoi Gr -) <o versus H ( -) >0 Ho ( -)-o versus H -) >0 OHa: C, -) -o versus (,-) <0 (b) De the data provide sufmicient evidence to indicate that the oral antplaque rinse is effective Test using 0.0s State the test statistic. (Round your answer to three decimal places.) State the rejection region. (If the test is one-talled, enter NONE for the unused region, Round your entwers to three decimal glaces.) State the concusion. OHis not rejected. There is insufficient evidence to conclude that the oral antiplaque rise effective OH is not rejected. There is sufficent evidence to conclude that the oral andiplaque rise is effective
Expert Solution
steps

Step by step

Solved in 3 steps with 12 images

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Similar questions
Recommended textbooks for you
MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
Statistics for The Behavioral Sciences (MindTap C…
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
Elementary Statistics: Picturing the World (7th E…
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
The Basic Practice of Statistics
The Basic Practice of Statistics
Statistics
ISBN:
9781319042578
Author:
David S. Moore, William I. Notz, Michael A. Fligner
Publisher:
W. H. Freeman
Introduction to the Practice of Statistics
Introduction to the Practice of Statistics
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman
SEE MORE TEXTBOOKS